The Ferrx FEMM (Ferrx ElectroMagnetic Method) has been developed and
tested for 2 decades, first by SINTEF and since 2005 by Ferrx. The
method has proved unique features for condition monitoring of steel
structures. Material deterioration can be directly measured and early
warning of risk for fatigue can be established long before any crack is
detectable. Furthermore, the same sensors can also measure changes in metal
loss, and thus provide for non-intrusive monitoring of internal corrosion
and erosion in pipes.
During the last years the instrumentation technology has been
industrialized and the first commercial systems have been delivered and
installed. Different types of instrumentation systems are available both for
onshore and offshore/subsea applications. The industrialization,
marinization and production of the instrumentation systems are being done
in cooperation with the most specialized suppliers.
Ferrx is an independent company located in Trondheim, Norway with the
business idea to provide the FEMM technology for different onshore and
offshore markets to monitor the actual condition of steel structures and
thus prevent loss of assets and pollution of the environment.
The FEMM is protected by 2 patents and all rights are
vested in Ferrx. The system for riser inspection has been qualified by
DNV-GL in accordance with DNV-RP-A203 Technology Qualification.